Underlying Index Performance: The primary driver is the performance of the index 453640.KO tracks. Positive index returns generally increase ETF price, while negative returns decrease it.

Supply and Demand: Market forces of supply and demand for the ETF itself impact its price. Higher demand relative to supply pushes the price up, and vice versa.

Net Asset Value (NAV): The NAV, representing the total value of the ETF's holdings minus liabilities, influences the market price. Deviations between market price and NAV are usually corrected by arbitrage.

Investor Sentiment: Overall investor sentiment towards the underlying assets or market segment can affect demand and therefore price.

Expense Ratio: While not a direct driver, a higher expense ratio can indirectly affect returns and potentially the long-term attractiveness of the ETF.

Trading Volume: Higher trading volume typically indicates greater liquidity and price discovery, potentially leading to more accurate pricing.

Market Conditions: Broad market trends (bull or bear markets), economic news, and geopolitical events can all impact investor behavior and ETF prices.